Impelling device for cooling systems of internal combustion engines



Sept. 13, 1932..l mig.; s, MOORE ET AL 1,877,420

IMPELLING DEVIGE FOR COOLING SYSTEMS oF INTERNAL coMBUsTIoN ENGINES Filed Nov. 3, 1931 3fm/manioc@- `convolu`tions so as topassover the upper end Patented sept. 13, 1932 zij"fvwm-STATES [PATENT fof-FFME;

,GEonGE s MooR'E, on HARRISBURG, AND WILLIAM H. MiLLnR, Aon frnivrsinoox,j 'V

PENNSYLVANIA-I IMPELLI'ivG .nEvoE' non COOLING sYsTEi/is or iivrnnlvnn CoivrBnsrIoN-ENGIES Y Y ppeaton filed November 7* The in'vention relates to impelling devices f for coolingsystems of internal combustion engines, and has for its object to provide, in oonnection with such a"system,a rotary pump driven from a moving portion of the engine,

f andoo'nstrueted in ,amanner vwhereby the "inse of'p'acking is eliminated. V- Y ""ffurther object is to provide a pump in 'the return pipe leading `from the radiator to the engine jacketand' driven by a flexible fshaftV having'a driving Connection with the moving `parts of the engine, said flexible 's haftbeing rotatably VI nounted in a tubular V"memberhaving? a loop extending above the :Water levelwithin the radiator tojprevent leakage from thepump through the tubular member to an eXtentwhere it would leak from the tubular member. lAlso to provide a ground oint j connection between the pump andthe tubular meinberi'or insuringa tight `jointand eliminating the useoi'paoking;

YAiurther object is `to rotatethe iiexible "Shaft having convolutions in a direction iwhereby'lwater, which may seep into the tubular member will notbe` elevated'by the of theloop'ed tubular member.

V'furtherobject is to positively 'sealthe Vthe 'tubularmember and the.'boss vforformj ing a closeA ground connection between the foover of ",With the above and other objects in view theinventionresidesjin the combination and arrangementof parts as hereinafter set forth,

shown in the drawing, described and claimed, it being understood that'ohangesin thepreoise embodiment Voi" vthe inventionv may. be f4made'withinl the tvscope of what is vClaimed invention.

in thejdrwingi Y'Fe`11re` l is' a Perspectivevew of the device then pump] easing and the-tubular Figure, 2 is asiaeeieeatiqa 'of an internal@ com bu'stief` engine and' radiator, showingy the device applied thereto;

' through the rotary pumpfand; a'portionof the return pipe.'

vien/through the pump.;

Figure 5 isallongitudinal trough onefend of the tube. andgiexible s dit Vable braeket fon supporting the` driving of the tfubularmember'ld thddrive' pulley. Referringto the drawing, the numeral `l designatesa.conventional form of'internl;

'70 which the Cooling fluid passesf-romthefencombustion 'engine 'andQla radiatorfmto gine through the discharge .pipe, 3.*5 The Figure 4 isja vertical transverseseetionalw seotional view' Figure isv a side, A.elovation. of the water, after passing through theradiator 2, returns to the engine through the return@ pipedl in the usualmannel'. The return pipen 4 isv provided vvi th .V the usual flexible connection A5, and thepump casing 6 kis yinserted lin tn ejiiexible connection 5`vvith4 its ends 'f1 held material as olea'rly;` shown-finFigureefand i with a' removable ,cover 9,whih is lwelded to the`caeing at 1Q lvafterthe`bladedlrotor.11 is plaeedwiithlkthe casing, so as tofiormfa,

positive Closed Casing, i androne peektending member 14formed..integralfwithithe; V'casing 6, andonwhioh member is" placeda ""ing the 'samei1 'S'Cover 9 is provided; an ""upwardlylentending boss17.` J 'i l,vvhioh may vary Vin ninnber,A and during the son 65 'lr-,iguregmthe water will llotbe lifted.

Y 5 mounted in a .boss 17 and connected to the boss 17 by means of a coupling 19 is a pliable tubular member 20, preferably formed from copper. It will be noted that the tubular member 20 has a ground connection'21`with lpear". 'l`1j1bularmernber 20 is providedV with Y.

i a downwardly extending portion 23, which Y lterminates in a.Y horizontally andV inwardly extending arm"24 supported' by the sleeve 25 of a supportin'gbra'cket 26, whichy bracket is *secured to the engine 1 and is formed from threaded shaft sections 27 havingk right and lefthand thread and connected together by a sleeve 28, which, sleeve, when rotated, will l adjustthe horizontal portion 211 of the tubuk, lar member 20 inwardly and outwardly for properly positioning the drive pulley 29 in 'relation to theight 30 of the 'fan belt 31. By. ',roviding an adjustable bracket as shown in Idigure, it is obviousthatthe device may be adjustedtovarioustypes of vehicles, and

by making the pipe 20 flexible ,or pliable, it is obvious it c an'be bent to ,form the loop 22 according to various enginesstructures and locations 'ofparts i v ,It'will' be vnoted that in the pump and pump casing described, the use of packing isentirely'eliminated, therefore it will be seen Vthat the many difficulties incident to packedpumps are overcome', and the pump can be easily and quickly inserted .in the flexiblepipe :section 5.

.l 'j-'fSecuredV lby'means of `al*'rectangularlyv @5f Shaft 13 is ailexib'leshaft 33, which shaft is *I shaped 'extension V32 to the upper end of the 'formed from "wire Vconvolutions 'l as clearly [shown 1n 'Figure 5. rIhe shaft `'extends uping at 34 tothe shaft ,of the drive pulley Y It will be seen thatas the drive pulley 29 ijs rotated' yby theflight v30 of the fan belt 3l, ,theV flexible shaft 33. will rotate and impart lrotation to theV pumpl rotor 11, however it fhas ibeen found thatl where springV convolutions are used in thegfflexible shaft,A said shaft shouldbe rotatedin a direction wherebvfw'ater, which mayseep through the .boss

17, 'around the shaft 113 intothe fiexible'mem-- `ber 20, :will not-be lifted by1said convolul jtions, during'` their rotations, over the loop 2,2, and if yproperly positioned as shown in thel boss 17, therefore leakage around. the. thread of thecoupling 19 is positively. prec Y .3. The combination with lwafrjdly through the pliable tubular member From the above it will be seen that a pump is provided in connection with a circulating system of an internal combustion engine, which is absolutely free of packing, driven from a moving portion of the engine through Va flexible shaft in a tubular pliable member,

and which flexible shaft'andtubular pliable member allow the device vto be applied to various pipes of yinternal combustion engines without,v varying the vconstructionrcthereovf. It will also bev seen that the pliable tubular member 2O allows adjustment range.v l ,j

The invention having-been setforth` what is claimed as new and useful is z-e 1. The lcombination with an internal combustion engine having a circulating ycooling system, a radiator in connection with .said cooling system in which a liquid level is maintained, pipe connections between saidy radiator and engine, a pipe inone of said pipey connections, of a fiexible drive connection. between said pump and armovable partof the engine and a pliable tubular member connected to the pump( and supportingv the ilexible driving connection. Y g Y c 2.- The combination with aninternalcombustion engine having a circulating coolingv system, a radiator in connectionwith said cooling system in whicha liquid level is maintained, pipe connectionsbetween said radiali-e295 tor'and engine, a pump inv one of said Yconnections, of a flexible ldriving connection betweenvfsaid ypump and the engine, a pliable tubular member through whichf said flexible driving connection extends, saidpliabletubu-y100 lar member extending to a position abovethe liquid level in the radiator.v "i

an internalcombustion engine having a circulating lcooling system, a radiator in connection withsaidg.;10V cooling system in which a liquid level is lmaintained, a discharge pipe connecting the radiator and the engine, .a pump'in said-discharge connection, of a flexiblerdrivingf connection between said pump'and the engine, a..pliabletlo tubular member through which said flexible drivingconnection extends, said pliable tubular member being looped toa position `above theliquid level in the radiator. j n

4. vThe combination with an internal comi bustion engine having acirculatingfcoroling system, a radiator -in connection V,with said cooling system, a pipe ndischarging liquid from the radiator into. the engine,'a.pump in l Said discharge` Pipe, 0f a fiexible'drive'com 12 e Vnection .between said.,y pump and the engine,

' level in ythe radiator.

5. The combination withanjinternal; 4

' bustion engine having lacirculatingcoolingtno system, a radiator in connection with Asaid. cooling system, a discharge pipe connection between the radiator and the engine, a pump in said discharge pipe, ofv a coiled flexible drive connection between said pump and the engine, a pliable tubular member through which said ieXible driving connection eX- tends, said pliable tubular member extending y to a position above the liquid level in the lo radiator, said pliable driving connection being formed from a plurality of oonvolu` tions, said` pliable driving connection being Y rotated in a direction whereby the convolutions thereof will not lift liquid through the tubular member. 6. A device as set forth in claim 4 including means whereby the pulley can be adjusted towards and awayV from the fan belt.

Inl testimony whereof they hereunto ailiX their signatures.

" GEORGE S. MOORE.

WILLIAM I-I. MILLER. 

